associated with the electrical installation

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MBCampbell

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110.26 A 3 "Within the height requirements of this section, other equipment that is associated with the electrical installation and is located above or below the electrical equipment shall be permitted to extend not more than 6in beyond the front of the electrical equipment."

What defines associated with the electrical installation?

Is there a clarification by NEC or NFPA?
 
It certainly includes the transformer that provides power to the panel. I would say it also includes a sub-panel fed from the first panel, and it includes a meter that measures power drawn from the first panel. The tricky part is the question of whether it includes anything and everything electrical, such as a fire alarm panel or a branch panel fed from somewhere else entirely.
 
MBCampbell said:
other equipment that is associated with the electrical installation

What defines associated with the electrical installation?
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I agree with Pierre and Charlie. It can be tricky and little vague.

If you have a recirculation pump for the hotwater distribution in that space, it has an electrical component but it is associated with the plumbing, not the electrical installation. If you have a sub panel in that space that does not originate from your electrical installation, it is not associated with it. And so on. Just my opinion. ;)
 
Here are a few examples:

#1 12x12 Gutter extending the length of a building below a branch panel. The gutter distributes circuits from the branch panel. A customer metering socket metering the branch panel, and over the gutter, but does not directly interact with the gutter.

Would the gutter fall under the definition in regards to the meter.

#2 A customer meter over two large diameter 90's that extend 2" past the face of the meter at aprox 1' from the ground. The meter is at 6'.

Would the conduit infringe on the workspace?
 
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